Question

I have an object that is being thrown into the session array, and I want to run a foreach
on the items property.

I can’t seem to access it. I see that it’s private, but I can’t help but wonder why var_dump can show me what the property contains yet I can’t read the data as it throws a fatal error?

I suppose I could do some output buffering and evaluate var_dump as a string if I really have to like this but it seems like there should be a better method. Any ideas how I can access _items?

The object code var_dumped from var_dump($_SESSION['PHPurchaseCart']):

object(PHPurchaseCart)#191 (4) {
  ["_items:private"]=>
  array(2) {
    [0]=>
    object(PHPurchaseCartItem)#190 (6) {
      ["_productId:private"]=>
      string(2) "80"
      ["_quantity:private"]=>
      int(1)
      ["_optionInfo:private"]=>
      string(20) "Monthly Sponsorship "
      ["_priceDifference:private"]=>
      string(3) ".01"
      ["_customFieldInfo:private"]=>
      NULL
      ["_formEntryIds:private"]=>
      array(0) {
      }
    }
    [1]=>
    object(PHPurchaseCartItem)#189 (6) {
      ["_productId:private"]=>
      string(2) "75"
      ["_quantity:private"]=>
      int(1)
      ["_optionInfo:private"]=>
      string(20) "Monthly Sponsorship "
      ["_priceDifference:private"]=>
      string(3) ".02"
      ["_customFieldInfo:private"]=>
      NULL
      ["_formEntryIds:private"]=>
      array(0) {
      }
    }
  }
  ["_promotion:private"]=>
  NULL
  ["_promoStatus:private"]=>
  int(0)
  ["_shippingMethodId:private"]=>
  NULL
}

Ways I’ve tried to access it:

$fun = $_SESSION['PHPurchaseCart'];
var_dump($fun->_items);
exit;

The above throws a fatal error.

Answer 1

That’s the idea of private properties: You can’t access them. You should really not break this concept. If you really want to access such property, mark is as “public” in the original class definition.

The reason why var_dump can access it is because it is an internal function, and it has the “power” to view the whole object. However, your code doesn’t have that power.

I wouldn’t recommend it, but if you really need to access a private property, you can use PHP Reflection to achieve it.